Booker has been rumored to be considering a White House bid in 2020, and in a July interview he didn’t rule out running for president.

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"I don't know what the future's going to bring," Booker said in an interview on CNN’s “The Axe Files” podcast. "I'm not making predictions, but I want to unleash the fullness of who I am right now, and I want to call out injustice where I see it."

"I think that politicians make a terrible mistake if they're thinking about aspirations for another office, because I think it undermines their integrity where they are," he continued.

"If I start thinking about the future like that or engaging in that stuff ... I think it would make me a lesser of a senator."

Booker has previously trolled Trump for his use of Twitter, resurfacing Trump’s old criticism of ObamaCare and comparing it to GOP efforts to repeal and replace the law.